Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Friday, June 26, 2026
The tide is currently falling in South Dewees Island, SC.
Next low tide (tomorrow) : in 5h 31m at 12:42 am (0.5 ft)
Next high tide (tomorrow) : 6:38 am (4.1 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:12 am
Moon phase : Waxing Gibbous (90% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Jul 2046

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:164.06:465.412:120.711:57 AM0.16:148:31Waning Crescent1Sun
2Mon7:064.27:325.61:010.412:47-0.16:158:31New Moon2Mon
3Tue7:544.38:185.81:480.21:38-0.36:158:31New Moon3Tue
4Wed8:434.49:055.82:350.02:28-0.46:158:31New Moon4Wed
5Thu9:344.69:535.83:21-0.13:20-0.46:168:30New Moon5Thu
6Fri10:264.710:425.84:07-0.34:11-0.46:168:30Waxing Crescent6Fri
7Sat11:214.911:325.64:53-0.45:05-0.36:178:30Waxing Crescent7Sat
8Sun12:175.05:41-0.46:02-0.16:178:30Waxing Crescent8Sun
9Mon12:245.41:165.26:31-0.47:030.16:188:30First Quarter9Mon
10Tue1:195.12:155.37:25-0.38:080.26:198:29First Quarter10Tue
11Wed2:154.83:145.48:20-0.39:120.36:198:29First Quarter11Wed
12Thu3:144.64:155.59:17-0.210:150.36:208:29Waxing Gibbous12Thu
13Fri4:144.45:155.610:14-0.211:160.36:208:28Waxing Gibbous13Fri
14Sat5:154.36:125.711:11-0.26:218:28Waxing Gibbous14Sat
15Sun6:144.37:055.712:130.212:07-0.16:218:28Waxing Gibbous15Sun
16Mon7:084.47:535.71:050.212:59-0.16:228:27Full Moon16Mon
17Tue7:574.48:375.61:540.11:490.06:238:27Full Moon17Tue
18Wed8:444.59:205.52:400.12:350.06:238:26Full Moon18Wed
19Thu9:304.510:005.33:220.13:190.26:248:26Full Moon19Thu
20Fri10:144.510:385.14:010.24:010.46:258:25Waning Gibbous20Fri
21Sat10:564.511:154.94:370.34:410.56:258:25Waning Gibbous21Sat
22Sun11:374.511:524.75:120.35:210.86:268:24Waning Gibbous22Sun
23Mon12:184.55:460.46:040.96:268:24Waning Gibbous23Mon
24Tue12:304.51:014.66:230.56:531.16:278:23Third Quarter24Tue
25Wed1:124.31:464.67:030.57:471.26:288:22Third Quarter25Wed
26Thu1:574.12:344.77:490.68:441.26:288:22Third Quarter26Thu
27Fri2:474.03:264.98:390.59:421.26:298:21Third Quarter27Fri
28Sat3:414.04:225.09:330.410:411.06:308:20Waning Crescent28Sat
29Sun4:404.05:205.310:290.311:370.86:308:19Waning Crescent29Sun
30Mon5:404.26:155.511:270.16:318:19Waning Crescent30Mon
31Tue6:364.47:075.812:300.612:23-0.16:328:18Waning Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8665111)

Common Questions About South Dewees Island, SC Tides

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What time does the tide turn (slack tide) in South Dewees Island, SC today?

Slack tide in South Dewees Island, SC is approximately 3:40 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in South Dewees Island, SC?

South Dewees Island, SC is currently in a spring phase. Tonight's moon is 90% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are South Dewees Island, SC tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for South Dewees Island, SC?

Tide predictions for South Dewees Island, SC come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for South Dewees Island, SC?

Tide data for South Dewees Island, SC is sourced from NOAA Station #8665111. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8665111.

What is the moon phase in South Dewees Island, SC tonight?

Tonight the moon over South Dewees Island, SC is Waxing Gibbous (90% illuminated). This places South Dewees Island, SC in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA